fix dup issue

app.py

@@ -38,9 +38,12 @@ def load_data(n):
 
 def is_duplicate(s):
     # st.write(s)
-    check_candidate = (s["Id"], s["Time"])
-    res = check_candidate in st.session_state["duplicates"]
-    st.session_state["duplicates"].add(check_candidate)
+    if st.session_state["duplicates"]:
+        check_candidate = (s["Id"], s["Time"])
+        res = check_candidate in st.session_state["duplicates"]
+        st.session_state["duplicates"].add(check_candidate)
+    else:
+        st.session_state["duplicates"] = set()
     return res
 
 # if "count" not in st.session_state:
@@ -93,11 +96,12 @@ with col2:
 
         with placeholder.container():
             if graph_type == 'Line':
-                st.bar_chart(chart_data)
+                st.line_chart(chart_data)
             elif graph_type == 'Bar':
                 st.bar_chart(chart_data)
                 # st.bar_chart(chart_data["data"], y = chart_data["label"])
             # st.map(df)
             st.write(df)
-        time.sleep(15)
+        time.sleep(2)
+        # st.write(st.session_state)
         # st.session_state["count"] += 1